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[xray] Function coverage groups

Authored by ianlevesque on Sep 18 2020, 11:45 AM.

Description

[xray] Function coverage groups

Add the ability to selectively instrument a subset of functions by dividing the functions into N logical groups and then selecting a group to cover. By selecting different groups over time you could cover the entire application incrementally with lower overhead than instrumenting the entire application at once.

Differential Revision: https://reviews.llvm.org/D87953

Details

Committed
ianlevesqueSep 24 2020, 7:09 PM
Differential Revision
D87953: [xray] Function coverage groups
Parents
rG8c98c8803430: PR47176: Don't read from an inactive union member if a friend function
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